| 摘要 |
<p>Apparatus for buttering a slice of bread is able to apply butter from a non-contact buttering head, in this case in the form of a spinning disc 5, without contaminating the edges, la, 1 b of the slice, by arranging for an acute angle a between the direction of flow of a butter curtain 3 and the plane of the slice 1 as the leading edge 1 a enters the curtain, and an obtuse angle ß between the direction of the butter and the plane of the slice as the trailing edge 1 b leaves the curtain. In the preferred embodiment the slice is inclined downwardly on passing from an in-feed conveyor to a forwarding conveyor at a lower level, to generate the angle a, and virtue of the butter flow is non-vertical with an orientation to ensure that the flow does not contact the trailing edge 1b as the slice 1 leaves the curtain 3.</p> |
